1 - He's as close as it gets to guaranteed success

It's a little-known fact, but Mourinho is the patron saint of silversmiths.

Forget his sponsorship deals with Jaguar and Hublot watches, he really should have a deal with Silvo Polish, because there are trophy rooms all over Europe filled with his silverware. Mourinho has lifted 22 major trophies since he took the reigns in 2002 at Porto where league titles and cups were claimed, before he replicated his success at Chelsea, Inter Milan, Real Madrid and then back at Stamford Bridge.

He doesn't just do it through spending money either. While everyone is amazed by Leicester City's success in the English Premier League, it shouldn't be forgotten Mourinho won the Champions League with Porto.

2 - Boring football?

Cristiano Ronaldo of Real Madrid

Let's just put some perspective on claims Mourinho's teams play boring football. While he was in charge at Real Madrid the world was swooning at the sight of Barcelona and their tiki-taka football and the genius of Lionel Messi and his chums. Rather than choking the life out of games, as some might suggest, Mourinho's Madrid banged in seven more goals than Barca in 2010/11 with 102 and led by the same margin with 121 goals the following year.

3 - He's the rightful heir to Fergie's throne

Jose Mourinho and Sir Alex Ferguson had a healthy respect when they were rivals in the dugout (Image: Getty Images)

Let's face it, while United have been busy trying to replace Sir Alex Ferguson with pretenders to the throne, the real heir to Fergie's legacy has been staring them in the face.

Fergie told the Aberdeen players the world was against them and it drove them so hard they toppled Real Madrid in the European Cup-Winners' Cup Final. He went to Old Trafford and did the same, building an empire of unprecedented success in English football.

Mourinho is cut from the same cloth, fiercely protective of his players and prepared to lead from the front against the enemy.

4 - A match for anyone

Pep is heading to Manchester

As former United player Phil Neville has already said, next season's Premier League race is going to be a war and while the very best players might be in Spain, you could argue the Premier League has the cream of the managerial crop.

There is plenty of bitterness between Mourinho and Arsene Wenger at Arsenal and things are no different with Pep Guardiola who is now also in Manchester at rivals City.

Jurgen Klopp will be expected to mount a credible title challenge at old enemy Liverpool and Antonio Conte arrives at Chelsea with huge expectations.

Add reigning champion Claudio Ranieri into the mix and Mauricio Pochettino at Tottenham and there is going to be a title fight every second week. No one enjoys a scrap more than Mourinho.

5 - He beats Liverpool

Jurgen Klopp (Image: Action Images via Reuters / John Sibley)

For all the new money swirling around the Premier League, the true aristocrats of English football are still United and Liverpool.

The Anfield club have yet to get their hands on the modern Premier League trophy, but they remain the scalp United fans want more than any other.

As Fergie said, his main aim at Old Trafford was to "knock Liverpool right off their ****ing perch". And he did.

In Mourinho's time at Chelsea, he beat Liverpool more than any other club with eight victories out of 12.